Merge remote-tracking branch 'origin/kotlin' into kotlin

# Conflicts:
#	app/app.iml
#	app/build.gradle
#	app/src/main/java/code/name/monkey/retromusic/ui/activities/base/AbsBaseActivity.java

app/src/main/java/code/name/monkey/retromusic/ui/activities/base/AbsBaseActivity.java

@@ -0,0 +1,159 @@
+package code.name.monkey.retromusic.ui.activities.base;
+
+import android.Manifest;
+import android.content.Context;
+import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.media.AudioManager;
+import android.net.Uri;
+import android.os.Build;
+import android.os.Bundle;
+import android.provider.Settings;
+import android.view.KeyEvent;
+import android.view.View;
+import android.view.ViewGroup;
+
+import com.google.android.material.snackbar.Snackbar;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.core.app.ActivityCompat;
+import androidx.core.view.ViewCompat;
+import code.name.monkey.appthemehelper.ThemeStore;
+import code.name.monkey.retromusic.R;
+import uk.co.chrisjenx.calligraphy.CalligraphyContextWrapper;
+
+
+public abstract class AbsBaseActivity extends AbsThemeActivity {
+
+    public static final int PERMISSION_REQUEST = 100;
+    private boolean hadPermissions;
+    private String[] permissions;
+    private String permissionDeniedMessage;
+
+
+    @Override
+    protected void onCreate(Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setVolumeControlStream(AudioManager.STREAM_MUSIC);
+
+        permissions = getPermissionsToRequest();
+        hadPermissions = hasPermissions();
+
+        setPermissionDeniedMessage(null);
+    }
+
+    @Override
+    protected void onPostCreate(@Nullable Bundle savedInstanceState) {
+        super.onPostCreate(savedInstanceState);
+        if (!hasPermissions()) {
+            requestPermissions();
+        }
+    }
+
+    @Override
+    protected void onResume() {
+        super.onResume();
+        final boolean hasPermissions = hasPermissions();
+        if (hasPermissions != hadPermissions) {
+            hadPermissions = hasPermissions;
+            if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
+                onHasPermissionsChanged(hasPermissions);
+            }
+        }
+    }
+
+    protected void onHasPermissionsChanged(boolean hasPermissions) {
+        // implemented by sub classes
+    }
+
+    @Override
+    public boolean dispatchKeyEvent(@NonNull KeyEvent event) {
+        if (event.getKeyCode() == KeyEvent.KEYCODE_MENU && event.getAction() == KeyEvent.ACTION_UP) {
+            showOverflowMenu();
+            return true;
+        }
+        return super.dispatchKeyEvent(event);
+    }
+
+    protected void showOverflowMenu() {
+
+    }
+
+    @Override
+    protected void attachBaseContext(Context newBase) {
+        super.attachBaseContext(CalligraphyContextWrapper.wrap(newBase));
+    }
+
+    @Nullable
+    protected String[] getPermissionsToRequest() {
+        return null;
+    }
+
+    protected View getSnackBarContainer() {
+        return getWindow().getDecorView();
+    }
+
+    private String getPermissionDeniedMessage() {
+        return permissionDeniedMessage == null ? getString(R.string.permissions_denied)
+                : permissionDeniedMessage;
+    }
+
+    protected void setPermissionDeniedMessage(String message) {
+        permissionDeniedMessage = message;
+    }
+
+    protected void requestPermissions() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && permissions != null) {
+            requestPermissions(permissions, PERMISSION_REQUEST);
+        }
+    }
+
+    protected boolean hasPermissions() {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && permissions != null) {
+            for (String permission : permissions) {
+                if (checkSelfPermission(permission) != PackageManager.PERMISSION_GRANTED) {
+                    return false;
+                }
+            }
+        }
+        return true;
+    }
+
+    @Override
+    public void onRequestPermissionsResult(int requestCode, @NonNull String[] permissions,
+                                           @NonNull int[] grantResults) {
+        super.onRequestPermissionsResult(requestCode, permissions, grantResults);
+        if (requestCode == PERMISSION_REQUEST) {
+            for (int grantResult : grantResults) {
+                if (grantResult != PackageManager.PERMISSION_GRANTED) {
+                    if (ActivityCompat.shouldShowRequestPermissionRationale(AbsBaseActivity.this,
+                            Manifest.permission.WRITE_EXTERNAL_STORAGE)) {
+                        //User has deny from permission dialog
+                        Snackbar.make(getSnackBarContainer(), getPermissionDeniedMessage(),
+                                Snackbar.LENGTH_INDEFINITE)
+                                .setAction(R.string.action_grant, view -> requestPermissions())
+                                .setActionTextColor(ThemeStore.accentColor(this))
+                                .show();
+                    } else {
+                        // User has deny permission and checked never show permission dialog so you can redirect to Application settings page
+                        Snackbar.make(getSnackBarContainer(), getPermissionDeniedMessage(),
+                                Snackbar.LENGTH_INDEFINITE)
+                                .setAction(R.string.action_settings, view -> {
+                                    Intent intent = new Intent();
+                                    intent.setAction(Settings.ACTION_APPLICATION_DETAILS_SETTINGS);
+                                    Uri uri = Uri.fromParts("package", AbsBaseActivity.this.getPackageName(), null);
+                                    intent.setData(uri);
+                                    startActivity(intent);
+                                })
+                                .setActionTextColor(ThemeStore.accentColor(this))
+                                .show();
+                    }
+                    return;
+                }
+            }
+            hadPermissions = true;
+            onHasPermissionsChanged(true);
+        }
+    }
+}